Index: frontend/node_modules/emoji-regex/README.md
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+# emoji-regex [![Build status](https://travis-ci.org/mathiasbynens/emoji-regex.svg?branch=main)](https://travis-ci.org/mathiasbynens/emoji-regex)
+
+_emoji-regex_ offers a regular expression to match all emoji symbols and sequences (including textual representations of emoji) as per the Unicode Standard.
+
+This repository contains a script that generates this regular expression based on [Unicode data](https://github.com/node-unicode/node-unicode-data). Because of this, the regular expression can easily be updated whenever new emoji are added to the Unicode standard.
+
+## Installation
+
+Via [npm](https://www.npmjs.com/):
+
+```bash
+npm install emoji-regex
+```
+
+In [Node.js](https://nodejs.org/):
+
+```js
+const emojiRegex = require('emoji-regex/RGI_Emoji.js');
+// Note: because the regular expression has the global flag set, this module
+// exports a function that returns the regex rather than exporting the regular
+// expression itself, to make it impossible to (accidentally) mutate the
+// original regular expression.
+
+const text = `
+\u{231A}: ⌚ default emoji presentation character (Emoji_Presentation)
+\u{2194}\u{FE0F}: ↔️ default text presentation character rendered as emoji
+\u{1F469}: 👩 emoji modifier base (Emoji_Modifier_Base)
+\u{1F469}\u{1F3FF}: 👩🏿 emoji modifier base followed by a modifier
+`;
+
+const regex = emojiRegex();
+let match;
+while (match = regex.exec(text)) {
+  const emoji = match[0];
+  console.log(`Matched sequence ${ emoji } — code points: ${ [...emoji].length }`);
+}
+```
+
+Console output:
+
+```
+Matched sequence ⌚ — code points: 1
+Matched sequence ⌚ — code points: 1
+Matched sequence ↔️ — code points: 2
+Matched sequence ↔️ — code points: 2
+Matched sequence 👩 — code points: 1
+Matched sequence 👩 — code points: 1
+Matched sequence 👩🏿 — code points: 2
+Matched sequence 👩🏿 — code points: 2
+```
+
+## Regular expression flavors
+
+The package comes with three distinct regular expressions:
+
+```js
+// This is the recommended regular expression to use. It matches all
+// emoji recommended for general interchange, as defined via the
+// `RGI_Emoji` property in the Unicode Standard.
+// https://unicode.org/reports/tr51/#def_rgi_set
+// When in doubt, use this!
+const emojiRegexRGI = require('emoji-regex/RGI_Emoji.js');
+
+// This is the old regular expression, prior to `RGI_Emoji` being
+// standardized. In addition to all `RGI_Emoji` sequences, it matches
+// some emoji you probably don’t want to match (such as emoji component
+// symbols that are not meant to be used separately).
+const emojiRegex = require('emoji-regex/index.js');
+
+// This regular expression matches even more emoji than the previous
+// one, including emoji that render as text instead of icons (i.e.
+// emoji that are not `Emoji_Presentation` symbols and that aren’t
+// forced to render as emoji by a variation selector).
+const emojiRegexText = require('emoji-regex/text.js');
+```
+
+Additionally, in environments which support ES2015 Unicode escapes, you may `require` ES2015-style versions of the regexes:
+
+```js
+const emojiRegexRGI = require('emoji-regex/es2015/RGI_Emoji.js');
+const emojiRegex = require('emoji-regex/es2015/index.js');
+const emojiRegexText = require('emoji-regex/es2015/text.js');
+```
+
+## For maintainers
+
+### How to update emoji-regex after new Unicode Standard releases
+
+1. Update the Unicode data dependency in `package.json` by running the following commands:
+
+    ```sh
+    # Example: updating from Unicode v12 to Unicode v13.
+    npm uninstall @unicode/unicode-12.0.0
+    npm install @unicode/unicode-13.0.0 --save-dev
+    ````
+
+1. Generate the new output:
+
+    ```sh
+    npm run build
+    ```
+
+1. Verify that tests still pass:
+
+    ```sh
+    npm test
+    ```
+
+1. Send a pull request with the changes, and get it reviewed & merged.
+
+1. On the `main` branch, bump the emoji-regex version number in `package.json`:
+
+    ```sh
+    npm version patch -m 'Release v%s'
+    ```
+
+    Instead of `patch`, use `minor` or `major` [as needed](https://semver.org/).
+
+    Note that this produces a Git commit + tag.
+
+1. Push the release commit and tag:
+
+    ```sh
+    git push
+    ```
+
+    Our CI then automatically publishes the new release to npm.
+
+## Author
+
+| [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") |
+|---|
+| [Mathias Bynens](https://mathiasbynens.be/) |
+
+## License
+
+_emoji-regex_ is available under the [MIT](https://mths.be/mit) license.